baber/WOPTO huggingface dataset:
Patent GB-840905-A (GB)
Title: Polybenzyl derivatives and a process for the production thereof
IPC: C08L63/00
Filed: 1957-08-28
Abstract: Polybenzyl of the general formula <FORM:0840905/IV(a)/1> in which N is an integer, is prepared by FriedelCrafts type condensation of benzyl chloride using ferric chloride as catalyst. The product is chlorinated in the side chain to the desired degree by passing chlorine with exposure to light into either polybenzyl dissolved in a suitable solvent e.g. benzene or carbon tetrachloride at 70-80 DEG C. or molten polybenzyl at 60-130 DEG  C. The chlorination may be carried out without exposure to light and without solvents if a polybenzyl which is liquid at room temperature is used.  Further derivatives of polybenzyl are obtained by interchange of chlorine atoms in the chlorinated polybenzyl with other groups.  Thus chlorine atoms may be exchanged for amino groups by reaction with e.g. liquid ammonia, aniline or diethylene-triamine; for hydroxyl groups by reaction with aqueous sodium hydroxide or by interchange of acid radicals by reaction with e.g. potassium acetate, followed by alcoholysis with e.g. benzyl alcohol; for organic acid residues by reaction with alkali metal salts of organic acid e.g. sodium stearate and linoleate; for substituted or unsubstituted aryl- or alkyl-oxy groups by reaction with the alkali metal derivatives of phenols or alcohols e.g. sodium phenolate and the sodium alcoholates of allyl and benzyl alcohols; for substituted or unsubstituted aryl groups by Friedel-Crafts type condensation with e.g. phenol or iso-octyl phenol.  Combinations of the above reactions may be used to produce polybenzyl derivatives containing several substituents e.g. partial saponification with aqueous sodium hydroxide followed by interchange of acid radicals with potassium acetate.  The polybenzyl derivatives containing hydroxyl or amino groups may be hardened by reaction with polyisocyanates e.g. toluylene diisocyanate or hexamethylene diisocyanate, or with polyepoxy compounds e.g. the epoxy resin prepared from epichlorhydrin and 4;41-diphenylolpropane 2,2.  The amino derivatives may be hardened by the application of heat alone and the products mixed with sawdust are useful as moulding materials.
Patent GB-439941-A (GB)
Title: Improvements in and relating to power hammers and the like
IPC: B21J7/24
Filed: 1934-06-11
Abstract: 439,941. Presses and hammers. TOWLER, F. H., Sunnyside Farm, Norwood Bottom, near Otley, and TOWLER, J. M., Wells House, Thruscross, Summerbridge, Harrogate, both in Yorkshire. June 11, 1934, No. 27119/35. Divided out of 437,276. [Class 83 (iv)] A hydro - pneumatic or other device for cushioning purposes operates before the application of the blow or pressure. As shown a hydro - pneumatic reservoir u is kept partly charged with liquid by a pump and a valve v, which may be hand operated allows, in one of its positions, of connection between the reservoir and an hydraulic cylinder m through pipes x, y. The valve in another position breaks this connection and couples the cylinder to exhaust. A trip k, which may be lifted by the pressure in the cylinder m, is allowed to fall for a certain distance with the cylinder connected to exhaust but before the blow is struck operation of the valve v enables the hydro pneumatic system to cushion the blow. Specification 437,276 is referred to.
Patent GB-256091-A (GB)
Title: Device for packing damaged hose
IPC: F16L55/17
Filed: 1925-10-29
Abstract: 256,091. Behrmann, L. Oct. 29, 1025. No Patent granted (Sealing fee not paid). Clips, band.-The damaged part of a hose is surrounded by a packing which is compressed thereon by a two-part clip b, c. The opposite longitudinal edges a of the elements b, c are outwardly flared and extend wedgeshaped, and are held together by a double-sided wedge-shaped slide d, each side c, f of which is adapted for a different diameter pipe.
Patent GB-616509-A (GB)
Title: Packing for pistons, piston rods and the like
IPC: F16J9/14
Filed: 1946-09-10
Abstract: 616,509. Piston packing; stuffing-box packing. NEW YORK AIR BRAKE CO. Sept. 10, 1946, No. 27210. Convention date, Jan. 2. [Classes 122 (i) and 122 (v)] In a combination of two relatively slidable elements such as a piston and cylinder or' stuffing-box, Fig. 4, one element is provided with a groove having at least one side 15 coned, and disposed therein a split spring ring 18 of hard material with one face 19 coned to correspond with the coned side of the groove and having an overlapping tongue-like joint, and a continuous ring 16 of resilient rubber-like material adapted to contact both elements and mounted between the split-ring and the opposite edge 14 of the groove, the continuous ring having a cross sectional area less than its residual space in the groove. The tongue-like joint, Fig. 5, is formed with a gradual taper on the side adjacent the continuous ring to provide a smooth space 25 into which the latter may extrude without damage. For reversible pressures two split-rings may be disposed on each side of the continuous ring within a doubleconed groove.
Patent GB-815592-A (GB)
Title: Apparatus for producing intimate contact between a liquid and a gas
IPC: B01D45/16
Filed: 1955-09-26
Abstract: 815,592. Contacting gases with liquids. AJEM LABORATORIES Inc. Sept. 26, 1955 [Sept. 27, 1954 ; June 16, 1955], No. 27372/55. Class 55 (2). Apparatus wherein a gas is contacted with a liquid comprises two spaced sinuous plates 14 and 16 (Fig. 2) between which the gas is drawn by a fan 12 and which are irrigated from a trough 23 with liquid in an amount greater than that required to maintain an unbroken film of liquid on the plates so that liquid falls from a convex portion of one wall towards an adjacent but lower convex portion of the other wall, the washed gas passes out of the apparatus through a chamber 10 containing moisture-removing plates 16. As shown, adapted as a paint spray booth, the apparatus also has a screen 4 washed with liquid from a trough 22. In modifications the spacing of the two sinuous plates may increase or decrease upwardly. In a further modification (Fig. 7) the plate 14 has an extension 5 so that the washed gas passes downwardly into the chamber 10. Baffles 29 and 7 are provided to accelerate the flow of gas at these points and the plates 14 and 16 are irrigated with liquid from a pipe 56.
Patent GB-893030-A (GB)
Title: Improvements relating to nails and strips of nails
IPC: B25C1/00
Filed: 1959-08-11
Abstract: 893,030. Nailing machines. SENCO PRODUCTS Inc. Aug. 11, 1959 [June 10, 1959], No. 27471/59. Class 89(3) [Also in Group XXV] A strip of nails 20 (see Group XXV) each having a notched head to receive the shank of an adjacent nail, is supported in a nailing machine by a sloping magazine 30, and the driving blade 28 of the machine has a notch 29 to enable it to drive the leading nail out through the nose 27 of the machine.
Patent GB-782325-A (GB)
Title: Improvements in securing cranks, levers or arms onto shafts, axles or spindles and particularly in driving pedal crank sets for bicycles, motor-assisted bicycles, tricycles and the like
IPC: B62M3/00
Filed: 1955-09-28
Abstract: 782,325. Securing elements to shafts. BEZET, B. B. Dec. 19, 1955 [Sept. 28, 1955], No. 27558/55. Class 80 (2). Means for securing cranks, levers or arms, and particularly cycle pedal cranks, to shafts, axles or spindles consists in forming the shaft end A of an obliquely cut non-circular crosssection to engage in a corresponding hole in the crank D and securing it by an obliquely cut locking member B of similar cross-section to the shaft end A clamped by a central bolt or screw C.
Patent GB-665851-A (GB)
Title: Improvements in and relating to panel structures
IPC: B64C1/00
Filed: 1948-10-23
Abstract: 665,851. Aircraft structures. BOULTON PAUL AIRCRAFT, Ltd., and BAKER, C. A. Oct. 24, 1949 [Oct. 23, 1948], No. 27598/48. Class 4. [Also in Groups VIII and X] A panel structure intended more particularly for the construction of aircraft control surfaces comprises an inner cellular layer of crossed interlocking flanged strips 1, 2, and skins 6, 7 secured to the flanges at each face of the layer, the strips 2 running in one direction being formed with longitudinal slots 3 to receive the transverse strips 1 which are cut away at 5 to enable them to be rotated, after being threaded through the slots, so that the flanges at the edges of the strips are brought into position to receive the skins. If desired, ties 8 may be provided to prevent spreading of the sides of the slots under load. In the case of aircraft structures the members 1, 2 serve as ribs and stringers respectively.
Patent GB-679848-A (GB)
Title: Improvements in and relating to helmets
IPC: A42B3/14
Filed: 1949-10-31
Abstract: 679,848. Helmets. HENDRY, Ltd., J., and HENDRY, J. Jan. 29, 1951 [Oct: 31, 1949], No. 37816/49. Class 63. A rigid helmet a has semi-circular crossed straps b secured to the crown by a rivet c. The straps b are riveted at e to a broad band d and have tongues b' passing through slots therein. A sweat band g, Fig. 5, has lining tongues h secured together by a cord i and is turned up. round a stiffening canvas band k and is attached to the band d by the tongues b<SP>1</SP> extending through loops m formed in a tape l stitched to the stiffening band k. U-shaped wire clips n, keep the extremities of the tongues b' secured to the band d. A rubber pad may lie interposed between the straps and the top of the lining. The lining can be separate from the sweat band in which case it is attached to the stiffening band k.
Patent GB-1178384-A (GB)
Title: Improvements relating to Automatic Telecommunication Switching Systems.
Inventor: WARMAN BLOOMFIELD JAMES
IPC: H04Q3/00
Filed: 1966-06-22
Abstract: 1,178,384 Automatic exchange systems. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 8 June, 1967 [28 June, 1966], No. 27966/66. Heading H4K. A folded network with relay cross-points switches the GO channels of 4-wire circuits in one section of the network along with 2- wire circuits, the RETURN channels of the 4- wire circuits being switched in a supplementary section of the network, hybrid circuits being provided along with the 4-wire and 2-wire junctions, as shown in Fig. 4, to provide interworking. Marking leads in each section of the network are commoned so that both GO and RETURN channels of a 4-wire path are set up by a single marking. Registers for 4-wire paths have appearances in both sections of the network. From the point of view of signalling a 4-wire path is the equivalent of two 2-wire paths, direct current duplex signalling being employed over the S-wire.
Patent GB-875379-A (GB)
Title: Improvements in or relating to control arrangements for slip-ring induction motors
Inventor: FRIEDLANDER ERICH SIEGFRIED
IPC: H02P25/26
Filed: 1958-09-01
Abstract: 875,379. Control of motors. GENERAL ELECTRIC CO. Ltd. Aug. 28, 1959 [Sept. 1, 1958], No. 27987/58. Class 38 (3). The rotor winding of an induction motor 1 is connected through transformer 4 and rectifier 5 to the armature of a D.C. motor 7 which is coupled directly to the induction motor. Initially, tapping 14 is in the position shown and moves automatically to higher tapping- points as the speed increases. Variable excitation for field winding 9 of the D.C. motor is provided by potentiometer 10, movement of tapping 13 allowing the field current to be varied continuously and reversibly. Full speed operation is reached by overcoming the voltagedrop in the rectifier by reversing the back- E.M.F. of the motor 7. The induction motor may then be operated as a synchronous motor. In an alternative arrangement the D.C. motor drives a generator for feeding power back to the A.C. supply. Specification 868,763 is referred to.
Patent GB-154432-A (GB)
Title: Improvements in and relating to electrically operated diaphragm horns
IPC: G10K9/10
Filed: 1919-11-12
Abstract: 154,432. Thompson, W. P., (C'hollet, L.). Nov. 12, 1919. Diaphragm horns.-In an electrically-operated diaphragm horn of the type in which the armature is wedge-shaped to correspond with bevelled ends on the electro-magnet cores, the bevelled ends 9 are at right-angles to the body of the cores 8 and to the electro-magnetic windings 6. The hammer 10 is supported by a spring strip 11, and in action delivers a rapid succession of shocks on the stud 5.
Patent GB-466085-A (GB)
Title: Improvements in or relating to means for affording protection within living spaces against poisonous gases in the external atmosphere
IPC: E04H9/06
Filed: 1936-10-15
Abstract: 466,085. Protection by ventilation against poison gas in enclosures. RUSSELL, F. J. Oct. 15, 1936, No. 28032. Addition to 464,248. [Class 137] A positive action pump 2 of the kind described in the parent Specification draws air from the external atmosphere through a pipe 5 extending into an upper layer of air relatively uncontaminated with poison gas, a purifying canister 6 being inserted in the pipe either at ground level or within the dug-out 1. The pump injects filtered air and creates a pressure in the dug-out or enclosure above that of the surrounding atmosphere and thus prevents entry of the poison gas.
Patent GB-1245516-A (GB)
Title: A process for the production of an anthraquinone disperse dye
IPC: C09B1/503
Filed: 1969-06-03
Abstract: 1,245,516. Anthraquinone compounds. SUMITOMO CHEMICAL CO. Ltd. 3 June, 1969 [14 June, 1968 (2)], No. 28040/69. Heading C4P [Also in Division C2] A 1,8 - dihydroxy - 4,5 - diaminoanthraquinone bromide or chloride is prepared by reacting ebtysazin borate with a nitrating agent in a fuming sulphuric acid having an initial S0 3  content of 10-40% by weight, reacting the resulting mixture containing 1,8-dihydroxy-4,5- dinitroanthraquinone borate with a brominating or chlorinating agent, reacting the resulting mixture containing a 1,8-dihydroxy-4,5-dinitroanthraquinone halide borate with a reducing agent in sulphuric acid medium and recovering the required free halide.
Patent GB-451391-A (GB)
Title: Improvements in and relating to shoe presses
IPC: C03B15/14
Filed: 1935-10-11
Abstract: 451,391. Boot - making machines. COMPO SHOE MACHINERY CORPORATION, 565, 5th Avenue, New York, U.S.A. Oct. 11, 1935, No. 28094. Convention date, Oct. 19, 1934. [Class 17 (i)] Sole-laying presses and the like are provided with means for supporting the welt comprising platens, shaped to enter the welt crease, and movable with respect to the toe post to permit engagement and disengagement of the support with the welt. A sleeve 16, adjustable vertically of the post, is connected by trunnions to a member 18 having a forward arm formed with a slot 23, and side arms formed with slots 26, 27. To each of the side arms is pivoted at 30, 34, pairs of slotted members 28, 32 above and below the arm. The forward and side slots each guide a post 36 connected with the pivot and ends of a pair of platens 38, 39 shaped to engage the welt crease. The posts are held to the platens by springs 40 for permitting the platens to be changed for others of different size, and springs 50 threaded over the posts urge the platens downward. The two rear posts are connected by a spring 59, and the slot 26 has a shoulder 60 for engaging its post when the platens are to be positioned about a welt. In a modification, the side slots are formed in members 124, clamped to the support by wing nuts to allow angular adjustment. In this form, a spring 63 holds the device in expanded position for application to the shoe.
Patent GB-682040-A (GB)
Title: Improvements relating to washing machines incorporating wringers
IPC: D06F45/00
Filed: 1949-11-23
Abstract: 682,040. Wringers. HOOVER (WASHING MACHINES), Ltd., and SIBBALD, F. R. Nov. 17, 1950. [Nov. 23, 1949] No. 28113/50. Divided out of 682,006. Class 138 (ii). [Also in Groups XXIII and XXXI] A washing-machine includes a container A for washing-liquid, a wringer having a body D which is pivotally mounted to fold from an operative to an inoperative position (as shown), and is capable of longitudinal movement along its pivot axis C, locking means for both the operative and inoperative positions comprising interengaging surfaces respectively afforded by a part L rigid with the container A and a part D<SP>0</SP> rigid with the wringer body D, and a spring C<SP>1</SP> tending to move the wringer body in the locking direction. The part D<SP>0</SP> is in the form of two ribs D<SP>2</SP>, D<SP>3</SP> which are urged by the action of the spring C<SP>1</SP> to engage beneath a rib forming the part L. A part L<SP>1</SP> of the rib L projects to form a stop for movement to the operative position. The rib D<SP>3</SP> is made longer than the rib D<SP>2</SP> for this purpose. The surfaces of the ribs D', D<SP>3</SP> and projection L may be inclined in order to produce a wedging action which compensates for wear. The handle of the crank for rotating the wringer rolls, may be of outwardly tapering contour so that a thrust on the casing tends to occur on operation of the wringer, in order to assist the spring C<SP>1</SP>. The washing machine has an inner lid (not shown) which occupies the part not taken up by the wringer and an outer lid (not shown) which can have one edge lodged under the wringer to form a work table, &c. An upper wringer roll (only just visible through the casing aperture D<SP>1</SP> in Fig. 2) is journalled in the casing D. The lower roll is journalled in a bearing block mounted in a U-shaped member F<SP>1</SP>. Springs F act between turned out ends of the member Fl and heads on bolts F<SP>2</SP> rigid with the casing D. Specifications 612,737 and 647,885 are referred to.
Patent GB-301303-A (GB)
IPC: A63J13/00
Filed: 1928-10-01
Abstract: 301,303. Garten, L. Kronau-. Nov. 26, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Hotels; restaurants.-Hotel lounges and guest rooms in restaurants are surrounded partly or completely by one or more panorama rooms containing views or fittings designed to give special effects, and the rooms may be separated by large windows, gateways, fencing or beds of flowers to increase the impression it is wished to convey. The main guest room a is surrounded by panorama rooms b which may also, be provided with domed ceilings lit by projection apparatus so as to represent clouds, rainbows, stars, and like effects.
Patent GB-890883-A (GB)
Title: Improvements relating to current-dependent inductors
IPC: H01F21/08
Filed: 1958-09-03
Abstract: 890,883. Inductors. PHILIPS ELECTRICAL INDUSTRIES Ltd. Sept. 3, 1958 [Sept. 6, 1957], No. 28303/58. Class 38 (2). A current-dependent inductor for correcting an initially non-linear sawtooth current comprises a disc-shaped coil 1 in which is a rodshaped soft-magnetic ferrite core 2 surrounded by a cylindrical permanent magnet 3 of non- conducting material, preferably " Magnadur " (Registered Trade Mark), having annular magnetic poles on the inside surface near its ends and centre, each pole surface being preferably greater than the cross-sectional area of the core. The wall thickness of the permanent magnet is materially less than the core diameter, and the core and permanent magnet are preferably of equal length, and at least five times as long as the coil. The bias magnetization is varied by relatively displacing the coil and the permanent magnet.
Patent GB-1478077-A (GB)
Title: Apparatus for separating water from liquid hydrocarbons
IPC: B01D17/04
Filed: 1975-07-04
Abstract: 1478077 Apparatus for separating water from hydrocarbons FAUDI FEINBAU GmbH 4 July 1975 [15 July 1974] 28357/75 Heading B1D An apparatus for separating water from liquid hydrocarbons comprises a vessel having an inlet 4 for water contaminated hydrocarbon, an outlet 5 for purified hydrocarbon and an outlet 6 for separated water, which vessel includes a gravity settling section upstream of a filter separation section wherein the filter of the separation section is in the form of a truncated pyramid having at least three lateral faces whose axis is parallel to the line of flow of the contaminated hydrocarbon from the inlet and wherein an edge joining two lateral faces of the pyramid lies further from the lower side of the vessel than the other edges. The two upper lateral faces may be flat and the two lower faces corrugated. The filter may be metal gauze coated with p.t.f.e. or other water repellent material having a pore size of 10-60 microns.
Patent GB-242989-A (GB)
Title: Improvements in and relating to regulating and feeding devices for liquid brakes
IPC: F16F9/44
Filed: 1925-11-11
Abstract: 242,989. Berkel, W. A. van. Nov. 11, 1924, [Convention date]. Dash-pots. - In a dash-pot or oil brake of the cylinder and piston type having the two ends of the cylinder connected by a restricted passage, a hollow adjustable regulating member g is located in the passage, this mem ber serving also to accommodate a levelindicating float u and to replenish the liquid. The lower end of the tubular member g is closed and it is provided with a narrow slot i so that rotary adjustment of the tube regulates the area of the opening to the passage d. A number of large holes k ensure an unrestricted connection to the passage e. The upper end of the tube g is normally closed by a plug o, which serves as an adjustment pointer and, when removed, enables the oil level to be tested by means of the sleeve of the float u.
Patent GB-605728-A (GB)
Title: Improvements in apparatus for distilling liquids
IPC: B01D1/00
Filed: 1945-10-26
Abstract: <PICT:0605728/III/1> In distillation apparatus, particularly for use with sea or river water, the density of the brine discharge is controlled and scale formamation is reduced by an evaporator having a vapour separating chamber b with a liquid sump, the feed valve i of which is controlled by float g in chamber f, the upper part of which is connected to the upstream side of flow meter c in the vapour outlet a while the lower part is connected to the sump; and the discharge valve i1 is controlled by float g1 in chamber f1 the upper part of which is connected to the downstream side of the flow meter, while the lower part is connected to water balance pipe n which forms a U tube with chamber f1 and is connected at its upper end to the upstream side of the flow meter.  Fresh water inlet o and overflow p ensure that the balance pipe is always maintained full.  This apparatus maintains the normal liquid level in its evaporator substantially constant, and keeps a constant ratio between the vapour flow and liquid discharge; the overall result being that the ratio of feed to discharge remains constant for varying outputs of vapour.  If desired, the float operation can be replaced by spring-loaded bellows or diaphragms.  In a modification, which can be used when the pressure varies considerably from atmospheric, the water balance pipe is led into chamber b and extends above the liquid level in the sump. The apparatus is suitable for use with the forced circulation evaporator described in Specification 538,999.